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| author | Paul Eggert <eggert@cs.ucla.edu> | 2015-10-18 22:18:49 -0700 |
|---|---|---|
| committer | Paul Eggert <eggert@cs.ucla.edu> | 2015-10-18 22:45:21 -0700 |
| commit | 82e0ec5306119206d85a223a1e61196440188ff6 (patch) | |
| tree | 00dff4d9a1a0f4bc24a1ecb0c17de553d0bd0e3e | |
| parent | 2a8b497f35cbc9548eff83752c37fc0ff0ab25cc (diff) | |
| download | gnulib-82e0ec5306119206d85a223a1e61196440188ff6.tar.gz | |
stdalign: work around pre-4.9 GCC x86 bug
* lib/stdalign.in.h (_Alignof): Work around bug in pre-4.9 GCC on
x86, when -std=gnu11 is used. Problem reported by Jim Meyering in:
http://lists.gnu.org/archive/html/bug-gnulib/2015-10/msg00038.html
| -rw-r--r-- | ChangeLog | 7 | ||||
| -rw-r--r-- | lib/stdalign.in.h | 5 |
2 files changed, 11 insertions, 1 deletions
@@ -1,3 +1,10 @@ +2015-10-18 Paul Eggert <eggert@cs.ucla.edu> + + stdalign: work around pre-4.9 GCC x86 bug + * lib/stdalign.in.h (_Alignof): Work around bug in pre-4.9 GCC on + x86, when -std=gnu11 is used. Problem reported by Jim Meyering in: + http://lists.gnu.org/archive/html/bug-gnulib/2015-10/msg00038.html + 2015-10-18 Pádraig Brady <P@draigBrady.com> maint.mk: sc_tight_scope: remove extraneous expressions diff --git a/lib/stdalign.in.h b/lib/stdalign.in.h index 9a7d5edd95..227eaf3981 100644 --- a/lib/stdalign.in.h +++ b/lib/stdalign.in.h @@ -52,7 +52,10 @@ #undef _Alignas #undef _Alignof -#if !defined __STDC_VERSION__ || __STDC_VERSION__ < 201112 +/* GCC releases before GCC 4.9 had a bug in _Alignof. See GCC bug 52023 + <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52023>. */ +#if (!defined __STDC_VERSION__ || __STDC_VERSION__ < 201112 \ + || (defined __GNUC__ && __GNUC__ < 4 + (__GNUC_MINOR__ < 9))) # ifdef __cplusplus # if 201103 <= __cplusplus # define _Alignof(type) alignof (type) |